Home / 35,907.36-49,549.77-19,991.40

Finding the Fourth Proportional to 35,907.36, 49,549.77 and 19,991.40

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Solution

The fourth proportional to 35,907.36, 49,549.77 and 19,991.40 is: 27,586.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,907.36 : 49,549.77 = 19,991.40 : x
  2. Step 2: Convert to fraction form
    35,907.36/49,549.77 = 19,991.40/x
  3. Step 3: Cross multiply
    35,907.36x = 49,549.77 × 19,991.40
  4. Step 4: Simplify right side
    35,907.36x = 990,569,271.98
  5. Step 5: Solve for x
    x = 990,569,271.98/35,907.36
  6. Step 6: Final answer
    x = 27,586.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.